[syn: proportionately, pro rata]
The Collaborative International Dictionary of English v.0.48:
Proportionately \Pro*por"tion*ate*ly\, adv.
In a proportionate manner; with due proportion;
proportionally.
[1913 Webster]
WordNet (r) 3.0 (2006):
proportionately
adv 1: to a proportionate degree; "your salary will rise
proportionately to your workload" [syn:
proportionately, proportionally] [ant:
disproportionately]
2: in proportion; "the height of this wall must be reduced
proportionately to give the room pleasant dimensions" [ant:
disproportionately]
3: in proportion [syn: proportionately, pro rata]